Some very interesting results from testing background image downloads contained within media queries or overridden with media queries: it turns out that, in iOS at least, the browser is getting smarter and smarter.

Oh yes! A plugin for Safari that will detect, display and export hCard and hCalendar data. Caveat: it only works on Leopard so, because I haven't upgraded yet, I haven't had a chance to testdrive this yet myself.